bitney



June 23, 1931.

D. H. BITNEY STRUCTURAL UNIT Original Filed Aug.

fi fpaf C21;

ATTORNEY Reissued June 23, 1931 p Re. 18,107

DEWEY H. BITNEY, OI

ALBION, MICHIGAN, assrelvoa r0 UNION comm, or amaromtmomean STEEL PRODUCTS s'rauc'rmn PUNIT I 0rig1nal 80. 1,706,558, dated March 28, 1929, Serial No. 212,244,1i1ed August 11, 1927. Application for reissue fl1ed.August 1, 1930. Serial No. 472,429.

The main object of this invention is to pro.- vide an improved structural unit adapted as a bolster or support for the reinforcing bars of concrete structures.

A further object is to provide a structural unit of this character which is very economical in structure and very effective for the purpose and is adapted for use in a variety of relations-' v object's relating to details. and economies of construction and operation of my inven-.

tion will definitely appear from the detailed description to follow. The invention is defined and pointed out'in the claims.

A structure which is a preferred embodiment of my accompanying drawing, in which:

Fig. 1 is a fragmentary perspective view of a structural unit embodying the features of my invention, apair of reinforcing bars bein indicated by dotted lines in operative relation 'to the support.

Fig. 2 is a fragmentary plan view.

Fig. 3 is a fragmentary section on a line corresponding to line 3-3 of Fig. 2.

In the embodiment illustrated in the accompanying drawing, my improved reinforcing support comprises a longitudinal rod 1 which is preferably corrugated, the-corrugations being disposed in a vertical plane. This rod is supported by a plurality of spaced feet 2 formed of loops of wire or light red, as may be required, these loops being elongated and disposed with their closed side downward, forming base members 3, their arms 4 being disposed oppositely and at'an angle to their base members, that is, the ends of the arms lie at an angle to the plane of the base member and at o posite sides thereof. The arms are secure by welding to the side of the longitudinal rod as indicated at 5 in Fi 3i 1 By thus disposing the arms, the tipping strain on the feet is minimized when under load and they are secured to the longitudinal rpfds so that they are not likely to be broken 0 The corrugations are uniformly spaced so as to constitute a unit of measure. The corrugations in the structures as manufactured invention is illustrated in the,

for the market are oneinch apart so that the bars may be easily spaced according to specifications. The corrugations assist also in retaining the bars in theirspaoed position as when the bars are wired to the support I they cannot slip along thereon. It is quite common practice to manufacture supports for the spacing designed for. In the applicants structure this is not necessary.

The units may be formed of standard length and cut tomeet the particular requirements. I have not attemptedto illustrateor describe certain modifications and adaptations which I contemplate as I believe this disclosure will enable those skilled in the art to embody or adapt my improvements as may be desired.

Having thus described my invention what I claim as new and desire to secure ters Patent is: Y

1. A structural unit comprising a corrugated longitudinal supporting rod disposed with its corrugations in a vertical plane, and a plurality of feet formed of elon ated loops of wire disposed transversely o the longitudinal rod with their closed sides downward and constituting base members, the

arms of the loops being disposed oppositely and at an angle to the base members an welded to the underside of the rod.

2. A structural unit comprising a longitudinal supporting rod, and a plurality of feet formed of elongated loops of wire disposed transversely of the longitudinal rod with their closed sides downward and constituting base members, the arms of the loops being disposed oppositely and at an angle to the base members and welded to the rod.

' 3; A structural unit comprising a longitudinal supporting rod, and a plurality of feet formed of elongated loops disposed transversely of said longitudinal rod with their closed sides downward and constituting base members, the arms of the loops being separ: ated and welded to the rod in planes on opposite sides of the vertical plane of the base member.

4. A reinforce bar support. comprising a corrugated longitudinal supporting rod dis- 2 a 1a,1o7

posed with its corrugations in a vertical plane, the corrugations being of uniform depth throughout the length of the rod and umfth'mly aced and comparatively shallow 5 relative to t e length of the rod and constituting seats with which reinforce bars to be supported may be selectively engaged, and supporting feet for said bar welde on the under side thereof in spaced relation. 1 5. A reinforce bar support comprising a corrugated longitudinal rod with itscorrugations in a vertical plane, the corrugations bein uniformly spaced and comparatively sha low relative to the length of 1 the rod and constituting seats with WhlCh re-" inforce bars to be supported may be selectively engaged, and supporting feet for said longitudinal bar fixedly secured thereto in spaced relation. v 6. A reinforce bar support comprising a corrugated longitudinal supporting rod disposed with its corrugations in a vertical plane, the corrugations bein comparatively shallow relative to the len Eof the rod and constituting seats with which the elements to be supported may be selectively engaged, and upporting feet for said rod fixedly secured thereto in spaced relation. Y i In witness whereof, I have hereunto set-my so hand.'

DEWEY H. BITN'EY; 

